Name: Call for Blood Cost: 4B CMC: 5 Color: B CID: B Type: Instant -- Arcane Rules Text: As an additional cost to cast this spell, sacrifice a creature. Target creature gets -X/-X until end of turn, where X is the sacrificed creature's power. Set/Rarity: Betrayers of Kamigawa common, Salvat 2005 common Set Code: BOK-C, PSAL-C Legality: Legal in penny, Legal in commander, Legal in pauper, Legal in modern, Legal in paupercommander, Legal in oathbreaker, Legal in duel, Legal in legacy, Legal in predh, Legal in vintage Price: $0.06 Foil price: $0.75